In this PLE we are going to continue our investigate acids and bases. (NOTE:
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SID#:

Laboratory Section:

1. Briefly explain what the term entropy means to you.

2. Which phase for a pure substance contains more energy; gas, liquid or
solid? Explain

3. Indicate for each change if the products are more dissordered or less
disorderd (more ordered) compared to the reactants.

a. H2O(l) ----> H2O(s)

b. CO2(s) ----> CO2(g)

c. 2Na(s) + 2H2O(l) ----> 2NaOH(aq) + H2(g)

d. 2H2(g) + O2(g) ----> 2H2O(g)

4. Given a balanced chemical equation explain how you would determine the
Horxn?

5. When the products are more dissordered compared to the reactants we say
S for the reaction is positive,
and if the products are more ordered compared to the reactants we say the
S for the reaction is negative.
For the following reactions predict the sign of S.